/**
 * Copyright 2008 Mathias Doenitz, http://lis.to/
 *
 * This file is part of the lis.to java desktop client. The lis.to java desktop client is free software: you can
 * redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * The lis.to java desktop client is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with the lis.to java desktop client.
 * If not, see http://www.gnu.org/licenses/
 */

package listo.client.dialogs.controllers;

import listo.utils.types.Copyable;

import java.awt.event.FocusEvent;
import java.util.List;
import java.util.ArrayList;

import org.apache.commons.lang.ArrayUtils;

public abstract class BaseController<T extends Copyable<T>> implements ComponentController<T> {

    protected T modelObject;
    protected List<ModelChangedListener> listeners = new ArrayList<ModelChangedListener>();

    /*
     ***************** ComponentController ************************
     */

    public void setModelObject(T modelObject) {
        this.modelObject = modelObject;
        updateView(false);
    }

    public void focusGained(FocusEvent e) {
        updateView(true);
    }

    public void focusLost(FocusEvent e) {
        updateView(false);
    }

    public void addModelChangedListener(ModelChangedListener listener) {
        listeners.add(listener);
    }

    /*
    ************************ PROTECTED METHODS *************************
    */

    /**
     * Fires a new ModelChanged event with the given controllers and this controller as the argument.
     * @param controllers the "inner" controllers
     */
    protected void fireModelChanged(ComponentController... controllers){
        ComponentController[] ctrls = (ComponentController[]) ArrayUtils.add(controllers, this);
        for (ModelChangedListener listener : listeners) {
            listener.modelChanged(ctrls);
        }
    }

    protected abstract void extractFromView();

    protected abstract void updateView(boolean active);

}
